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1
2
17
18
19 package org.apache.poi.util;
20
21 import junit.framework.*;
22
23 import java.io.*;
24
25
30
31 public class TestIntegerField
32 extends TestCase
33 {
34
35
40
41 public TestIntegerField(String  name)
42 {
43 super(name);
44 }
45
46 static private final int[] _test_array =
47 {
48 Integer.MIN_VALUE, -1, 0, 1, Integer.MAX_VALUE
49 };
50
51
54
55 public void testConstructors()
56 {
57 try
58 {
59 new IntegerField(-1);
60 fail("Should have caught ArrayIndexOutOfBoundsException");
61 }
62 catch (ArrayIndexOutOfBoundsException ignored_e)
63 {
64
65 }
67 IntegerField field = new IntegerField(2);
68
69 assertEquals(0, field.get());
70 try
71 {
72 new IntegerField(-1, 1);
73 fail("Should have caught ArrayIndexOutOfBoundsException");
74 }
75 catch (ArrayIndexOutOfBoundsException ignored_e)
76 {
77
78 }
80 field = new IntegerField(2, 0x12345678);
81 assertEquals(0x12345678, field.get());
82 byte[] array = new byte[ 6 ];
83
84 try
85 {
86 new IntegerField(-1, 1, array);
87 fail("Should have caught ArrayIndexOutOfBoundsException");
88 }
89 catch (ArrayIndexOutOfBoundsException ignored_e)
90 {
91
92 }
94 field = new IntegerField(2, 0x12345678, array);
95 assertEquals(0x12345678, field.get());
96 assertEquals(( byte ) 0x78, array[ 2 ]);
97 assertEquals(( byte ) 0x56, array[ 3 ]);
98 assertEquals(( byte ) 0x34, array[ 4 ]);
99 assertEquals(( byte ) 0x12, array[ 5 ]);
100 array = new byte[ 5 ];
101 try
102 {
103 new IntegerField(2, 5, array);
104 fail("should have gotten ArrayIndexOutOfBoundsException");
105 }
106 catch (ArrayIndexOutOfBoundsException ignored_e)
107 {
108
109 }
111 for (int j = 0; j < _test_array.length; j++)
112 {
113 array = new byte[ 4 ];
114 new IntegerField(0, _test_array[ j ], array);
115 assertEquals(_test_array[ j ], new IntegerField(0, array).get());
116 }
117 }
118
119
122
123 public void testSet()
124 {
125 IntegerField field = new IntegerField(0);
126 byte[] array = new byte[ 4 ];
127
128 for (int j = 0; j < _test_array.length; j++)
129 {
130 field.set(_test_array[ j ]);
131 assertEquals("testing _1 " + j, _test_array[ j ], field.get());
132 field = new IntegerField(0);
133 field.set(_test_array[ j ], array);
134 assertEquals("testing _2 ", _test_array[ j ], field.get());
135 assertEquals("testing _3.0 " + _test_array[ j ],
136 ( byte ) (_test_array[ j ] % 256), array[ 0 ]);
137 assertEquals("testing _3.1 " + _test_array[ j ],
138 ( byte ) ((_test_array[ j ] >> 8) % 256),
139 array[ 1 ]);
140 assertEquals("testing _3.2 " + _test_array[ j ],
141 ( byte ) ((_test_array[ j ] >> 16) % 256),
142 array[ 2 ]);
143 assertEquals("testing _3.3 " + _test_array[ j ],
144 ( byte ) ((_test_array[ j ] >> 24) % 256),
145 array[ 3 ]);
146 }
147 }
148
149
152
153 public void testReadFromBytes()
154 {
155 IntegerField field = new IntegerField(1);
156 byte[] array = new byte[ 4 ];
157
158 try
159 {
160 field.readFromBytes(array);
161 fail("should have caught ArrayIndexOutOfBoundsException");
162 }
163 catch (ArrayIndexOutOfBoundsException ignored_e)
164 {
165
166 }
168 field = new IntegerField(0);
169 for (int j = 0; j < _test_array.length; j++)
170 {
171 array[ 0 ] = ( byte ) (_test_array[ j ] % 256);
172 array[ 1 ] = ( byte ) ((_test_array[ j ] >> 8) % 256);
173 array[ 2 ] = ( byte ) ((_test_array[ j ] >> 16) % 256);
174 array[ 3 ] = ( byte ) ((_test_array[ j ] >> 24) % 256);
175 field.readFromBytes(array);
176 assertEquals("testing " + j, _test_array[ j ], field.get());
177 }
178 }
179
180
185
186 public void testReadFromStream()
187 throws IOException
188 {
189 IntegerField field = new IntegerField(0);
190 byte[] buffer = new byte[ _test_array.length * 4 ];
191
192 for (int j = 0; j < _test_array.length; j++)
193 {
194 buffer[ (j * 4) + 0 ] = ( byte ) (_test_array[ j ] % 256);
195 buffer[ (j * 4) + 1 ] = ( byte ) ((_test_array[ j ] >> 8) % 256);
196 buffer[ (j * 4) + 2 ] = ( byte ) ((_test_array[ j ] >> 16) % 256);
197 buffer[ (j * 4) + 3 ] = ( byte ) ((_test_array[ j ] >> 24) % 256);
198 }
199 ByteArrayInputStream stream = new ByteArrayInputStream(buffer);
200
201 for (int j = 0; j < buffer.length / 4; j++)
202 {
203 field.readFromStream(stream);
204 assertEquals("Testing " + j, _test_array[ j ], field.get());
205 }
206 }
207
208
211
212 public void testWriteToBytes()
213 {
214 IntegerField field = new IntegerField(0);
215 byte[] array = new byte[ 4 ];
216
217 for (int j = 0; j < _test_array.length; j++)
218 {
219 field.set(_test_array[ j ]);
220 field.writeToBytes(array);
221 int val = array[ 3 ] << 24;
222
223 val &= 0xFF000000;
224 val += (array[ 2 ] << 16) & 0x00FF0000;
225 val += (array[ 1 ] << 8) & 0x0000FF00;
226 val += (array[ 0 ] & 0x000000FF);
227 assertEquals("testing ", _test_array[ j ], val);
228 }
229 }
230
231
236
237 public static void main(String [] args)
238 {
239 System.out.println("Testing util.IntegerField functionality");
240 junit.textui.TestRunner.run(TestIntegerField.class);
241 }
242 }
243 |
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